2 years ago

Completing the square when the equation doesn't equal 0, e.g.

Mathematics

1 answer:

Hunter-Best [27]2 years ago

3 0

It's as it is said $y = x^2+6x+12$ .
Your question is unclear.

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If the measure of FGH IS 64º and the measure of EGD is (4x+8), what is the value of x?

Ugo [173]

$\\ \sf\longmapsto 4x+8=64$

$\\ \sf\longmapsto 4x=64-8$

$\\ \sf\longmapsto 4x=56$

$\\ \sf\longmapsto x=\dfrac{56}{4}$

$\\ \sf\longmapsto x=14$

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2 years ago

The length of line segment AK is 640 meters. ∆ABC, ∆CDF, and ∆FJK are similar, and 2AC = CF = 2FK. The first pillar is 20 meters

Aleksandr [31]

A to K = 640 meters

2AC = CF = 2FK

2AC = 2(160) = 320
CF = 320
2FK = 2(160) = 320

AC = 160
CF = 320
FK = <u>160</u>
AK 640

BG = 20 m ; Area = (160m*20m) / 2 = 3,200/2 = 1,600 m²

20:160 = x : 320
20*320 = 160x
6,400 = 160x
6,400/160 = x
40 = x

Area of CDF = (320m*40m) / 2 = 12,800 / 2 = 6,400 m²

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3 years ago

Do the ratios 30/24 and 20/16 form a proportion?

BartSMP [9]

Answer:

Yes.

Step-by-step explanation:

Reduce both fractions.

30/24 = 5/4
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2 years ago

What is the value of the expression below? -28÷-4

Damm [24]

Answer: +7

Step-by-step explanation: Since a negative divided

by a negative always equals a positive, (-28) ÷ (-4) = +7

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2 years ago

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Zarrin [17]

Answer:

Step-by-step explanation:

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2 years ago